IBM Netfinity FAStT500, Installation Manual

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42 IBM Netfinity FAStT500 RAID Controller Enclosure Unit Installation Guide
Use the following procedure to turn on power to the controller unit.
Important: You must turn on the drive enclosures before, or at the same time as, the
controller unit. The controllers might not recognize the correct configuration
if the drives are powered up after the controller unit. If you plan to use the
main breaker to turn on all enclosures at the same time, make sure that the
switches on each drive enclosure and each controller unit are on before
turning on the main breaker. For instructions on powering up the drive
enclosures, refer to the drive enclosure documentation.
Note: Always wait at least 30 seconds between the time you turn off a power switch and
the time you turn on the power again.
Turn on both power switches on the back of the controller unit (see Figure 27 on page 41
for the location of the switches). You must turn on both switches to take advantage of the
redundant power supplies.
Turning off the power
CAUTION:
The Power Control button on the device and the power switch on the power supply
do not turn off the electrical current supplied to the device. The device also might
have more than one power cord. To remove all electrical current from the device,
ensure that all power cords are disconnected from the power source.
Attention: The controller unit is designed to run continuously, 24 hours a day. Except in
an emergency, never turn off the power if any controller unit fault indicator
lights are lit. Use the proper troubleshooting or servicing procedure to correct
the fault before turning off the power. This ensures that the controller unit
powers up correctly later.
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